General

  • Target

    b93c74fa36ed3d59360b1f242f2caa5a9abb6933e397d05a35e94dea32ff68b6

  • Size

    345KB

  • Sample

    221002-18pezadah8

  • MD5

    1f9ce13211e53fd308def558c7a593cf

  • SHA1

    8cadbb91b0452323c0f352b5cb4d8914267770a3

  • SHA256

    b93c74fa36ed3d59360b1f242f2caa5a9abb6933e397d05a35e94dea32ff68b6

  • SHA512

    49f8743572b9eea5a55e7bab6f14b1e167cb8155108f5839e7c71f8c7d49a7265e9f0d7b54f70309db45a4f2eca3391dbe63883a119a2d640ebcad19b211681c

  • SSDEEP

    6144:3+WVyOeJwU4oJ9ZETtTMgxM+cJoh0zf4n/4+PBXO7lyTNAPGc:XIqUj9ZtwMhJooYNBeByTC

Malware Config

Targets

    • Target

      b93c74fa36ed3d59360b1f242f2caa5a9abb6933e397d05a35e94dea32ff68b6

    • Size

      345KB

    • MD5

      1f9ce13211e53fd308def558c7a593cf

    • SHA1

      8cadbb91b0452323c0f352b5cb4d8914267770a3

    • SHA256

      b93c74fa36ed3d59360b1f242f2caa5a9abb6933e397d05a35e94dea32ff68b6

    • SHA512

      49f8743572b9eea5a55e7bab6f14b1e167cb8155108f5839e7c71f8c7d49a7265e9f0d7b54f70309db45a4f2eca3391dbe63883a119a2d640ebcad19b211681c

    • SSDEEP

      6144:3+WVyOeJwU4oJ9ZETtTMgxM+cJoh0zf4n/4+PBXO7lyTNAPGc:XIqUj9ZtwMhJooYNBeByTC

    • Modifies security service

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • XMRig Miner payload

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Stops running service(s)

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Virtualization/Sandbox Evasion

2
T1497

Impair Defenses

1
T1562

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Impact

Service Stop

1
T1489

Tasks